Date: Wed, 20 Jan 2010 15:30:24 +0900
From: Joonyoung Shim <jy0922.shim@samsung.com>
Subject: The use_count problem of regulator
To: lrg@slimlogic.co.uk, broonie@opensource.wolfsonmicro.com
Cc: kyungmin.park@samsung.com, mk7.kang@samsung.com,
       linux-kernel@vger.kernel.org
Message-id: <4B56A300.7000907@samsung.com>
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Hi, all.

I have one simple question.

In the regulator framework, if the regulator is enabled for example by 
boot_on constraint, when regulator_get is called at the driver probe 
function, the use_count of struct regulator_dev is zero. But if 
regulator_has_full_constraints() is used, even though above the 
regulator is using, it is disabled by regulator_init_complete() because
the use_count is zero.

Of course, we can use regulator_get_exclusive instead of regulator_get,
but if the regulator can be shared, i think this will be a problem.

Thanks.
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